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mmu的读写行为

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This commit is contained in:
Ruige Lee
2025-06-10 17:20:46 +08:00
parent 9a85cfd9b4
commit 9f0f232616
1 changed files with 56 additions and 7 deletions
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63
src/main/scala/backBoard/shin/Interface.scala
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@@ -3,6 +3,19 @@ package BACK
import chisel3._
import chisel3.util._
class EBMMU_Bundle extends Bundle{
val lAddr = UInt(30.W)
val pAddr = UInt(16.W)
val length = UInt(16.W)
val op = UInt(8.W)
val isEnable = Bool()
def EBMMU_OP_RD = op === 1.U
def EBMMU_OP_WR = op === 2.U
def EBMMU_OP_RW = op === 3.U
}
class CommonRegisterBundle extends Bundle{
val mstOrSlv = UInt(2.W)
def modeSel:Bool = mstOrSlv === "h1".U
@@ -72,13 +85,7 @@ class SlaveRegisterBundle extends Bundle{
// val nodeSetAddr = UInt(16.W)
// val ebmmu = Vec(8, new Bundle{
// val logicAddr = UInt(32.W)
// val length = UInt(16.W)
// val phyAddr = UInt(32.W)
// val op = UInt(2.W)
// val enable = Bool()
// })
val ebmmu = Vec(8, new EBMMU_Bundle)
// val intStatus = UInt(16.W)
// val mb = Vec(8, new Bundle{
@@ -364,6 +371,21 @@ abstract class InterfaceBase extends Module{
( 0 until 128 ).map{ i =>
( addr === ("h180".U(16.W) + i.U ) ) -> cReg.custom(i)
} ++
( 0 until 8 ).map{ i =>
( ( addr === ( "h200".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).lAddr( 7, 0),
( ( addr === ( "h201".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).lAddr(15, 8),
( ( addr === ( "h202".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).lAddr(23,16),
( ( addr === ( "h203".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).lAddr(29,24),
( ( addr === ( "h204".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).pAddr( 7, 0),
( ( addr === ( "h205".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).pAddr(15, 8),
( ( addr === ( "h206".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).length( 7, 0),
( ( addr === ( "h207".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).length(15, 8),
( ( addr === ( "h208".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).op,
( ( addr === ( "h209".U(16.W) + (10*i).U) ) & isSlvMode ) -> sReg.ebmmu(i).isEnable,
} ++
( 0 until 8 ).map{ i =>
( addr === ("h302".U(16.W) + (i*4).U) ) -> cReg.smTrigLen(i)(7,0)
} ++
@@ -725,6 +747,33 @@ trait InterfaceLVDSop{ this: InterfaceBase =>
}
}
}
( 0 until 8 ).map{ i =>
sReg.ebmmu(i).lAddr := Cat(
RegEnable( io.lvds.dataw(5,0), 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h203".U(16.W) + (10*i).U )) ),
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h202".U(16.W) + (10*i).U )) ),
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h201".U(16.W) + (10*i).U )) ),
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h200".U(16.W) + (10*i).U )) ),
)
sReg.ebmmu(i).pAddr := Cat(
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h205".U(16.W) + (10*i).U )) ),
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h204".U(16.W) + (10*i).U )) ),
)
sReg.ebmmu(i).length := Cat(
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h207".U(16.W) + (10*i).U )) ),
RegEnable( io.lvds.dataw, 0.U, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h206".U(16.W) + (10*i).U )) ),
)
sReg.ebmmu(i).op :=
RegEnable( io.lvds.dataw.extract(0), false.B, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h208".U(16.W) + (10*i).U )) )
sReg.ebmmu(i).isEnable :=
RegEnable( io.lvds.dataw.extract(0), false.B, io.lvds.isEnW & isSlvMode & (io.lvds.addrw === ( "h209".U(16.W) + (10*i).U )) )
}
}
trait InterfaceSync{ this: InterfaceBase =>